Many creative spaces and projects fit the criteria for funding through government (central and local body) and this funding and grants most often are available through the following organsiations:
Quick Response & Arts Grants are the general category most appropriate for projects and events that you may be putting on. They also fund individuals as well as groups/organisations/companies.
They also provide creative community grants but these are managed through the local city councils.
http://www.creativenz.govt.nz
Creative Communities funding, and other funding grants can be found under your local council.
Auckland City Council